#include <stdio.h>
// 定义一个二维字符数组,把字母a-z和A-Z存储到该数组中,并遍历展示
int main()
{
  char ch[2][26];
  int x = 97, y = 65;
  for (int i = 0; i < 2; i++)
  {
    for (int j = 0; j < 26; j++)
    {
      if (x < 123)
      {
        ch[i][j] = x;
        x++;
      }else if(y < 91)
      {
        ch[i][j] = y;
        y++;
      }
    }
  }
  printf("%s\n",ch);
  return 0;
}